# AirspeedWind (UORB message)



[source file](https://github.com/PX4/PX4-Autopilot/blob/main/msg/AirspeedWind.msg)

```c
uint64 timestamp        # time since system start (microseconds)
uint64 timestamp_sample         # the timestamp of the raw data (microseconds)

float32 windspeed_north     # Wind component in north / X direction (m/sec)
float32 windspeed_east      # Wind component in east / Y direction (m/sec)

float32 variance_north      # Wind estimate error variance in north / X direction (m/sec)**2 - set to zero (no uncertainty) if not estimated
float32 variance_east       # Wind estimate error variance in east / Y direction (m/sec)**2 - set to zero (no uncertainty) if not estimated

float32 tas_innov       # True airspeed innovation
float32 tas_innov_var       # True airspeed innovation variance

float32 tas_scale_raw       # Estimated true airspeed scale factor (not validated)
float32 tas_scale_raw_var   # True airspeed scale factor variance

float32 tas_scale_validated # Estimated true airspeed scale factor after validation

float32 beta_innov      # Sideslip measurement innovation
float32 beta_innov_var      # Sideslip measurement innovation variance

uint8 source            # source of wind estimate

uint8 SOURCE_AS_BETA_ONLY = 0   # wind estimate only based on synthetic sideslip fusion
uint8 SOURCE_AS_SENSOR_1 = 1    # combined synthetic sideslip and airspeed fusion (data from first airspeed sensor)
uint8 SOURCE_AS_SENSOR_2 = 2    # combined synthetic sideslip and airspeed fusion (data from second airspeed sensor)
uint8 SOURCE_AS_SENSOR_3 = 3    # combined synthetic sideslip and airspeed fusion (data from third airspeed sensor)

```
